---
title: app.json / app.config.js
description: A reference of available properties in Expo app config.
maxHeadingDepth: 5
---

import { BookOpen02Icon } from '@expo/styleguide-icons/outline/BookOpen02Icon';

import schema from '~/public/static/schemas/unversioned/app-config-schema.json';
import AppConfigSchemaTable from '~/ui/components/AppConfigSchemaTable';
import { BoxLink } from '~/ui/components/BoxLink';

The following is a list of properties that are available for you under the `"expo"` key in **app.json** or **app.config.json**. These properties can be passed to the top level object of **app.config.js** or **app.config.ts**.

<BoxLink
  title="Configuration with app config"
  description="For information on app configuration, the differences between various app config files, and how to use them dynamically."
  href="/workflow/configuration/"
  Icon={BookOpen02Icon}
/>

## Properties

<AppConfigSchemaTable schema={schema} />
